Added internal lab management of service/plugin names. (...)

- Removed Guid from Lab model.
- Fixed known XML doc.
Pending:
- Removal from UI.
Removed Guid from plugin creation/edition UI.
Lab: Toggle engine icon will glow a dreadful red when engine is started.
Adapted tests to Guid removal. Tests pass.
Merge remote-tracking branch 'origin/feature/plugin-guid-removal' into f-yodii-commands
Fixing last PluginId to PluginFullName